{"id":"CVE-2025-71320","title":"picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks","summary":"picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these u…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-184"],"vendor":"picklescan","product":"picklescan","affected":["picklescan < 0.0.33"],"patched":["picklescan 0.0.33"],"published":"2026-06-17","updated":"2026-10-12","sourceUpdated":"2026-10-12T22:10:00.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71320","references":[{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-84r2-jw7c-4r5q","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-incomplete-disallowed-inputs","label":"disclosure@vulncheck.com"},{"url":"https://github.com/mmaitre314/picklescan/security/advisories/GHSA-84r2-jw7c-4r5q","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71320"},{"url":"https://github.com/mmaitre314/picklescan/pull/53"},{"url":"https://github.com/mmaitre314/picklescan/commit/70c1c6c31beb6baaf52c8db1b6c3c0e84a6f9dab"},{"url":"https://github.com/mmaitre314/picklescan"},{"url":"https://github.com/mmaitre314/picklescan/releases/tag/v0.0.33"}],"tags":["nvd","osv","pip"],"epss":0.00823,"epssPercentile":0.57133,"aliases":["GHSA-84r2-jw7c-4r5q","PYSEC-2026-1785"],"ecosystem":"pip","ingestedAt":"2026-07-08T18:25:47.300Z","slug":"CVE-2025-71320","body":"## Overview\n\npicklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unblocked functions to achieve arbitrary code execution when the pickle is deserialized.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2025-71320)\n\nAffected packages:\n\n- `picklescan < 0.0.33`\n\nPatched in:\n\n- `picklescan 0.0.33`\n\nSource: https://osv.dev/vulnerability/GHSA-84r2-jw7c-4r5q","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[{"seq":213762,"id":"CVE-2025-71320","ts":1790788481304,"field":"cvss","old":null,"new":"9.8"},{"seq":213761,"id":"CVE-2025-71320","ts":1790788481304,"field":"severity","old":"high","new":"critical"}]}